radeon: Call pci_clear_master() instead of open-coding it.

Reported-by: Ben Hutchings <ben@decadent.org.uk>
Signed-off-by: Michel Dänzer <michel.daenzer@amd.com>
Reviewed-by: Alex Deucher <alexander.deucher@amd.com>
Signed-off-by: Dave Airlie <airlied@redhat.com>

1 files changed, 1 insertions, 3 deletions

diff --git a/drivers/gpu/drm/radeon/r100.c b/drivers/gpu/drm/radeon/r100.c
index 3ec81c3d5108..bfd36ab643a6 100644
--- a/drivers/gpu/drm/radeon/r100.c
+++ b/drivers/gpu/drm/radeon/r100.c
@@ -2186,7 +2186,6 @@ bool r100_gpu_is_lockup(struct radeon_device *rdev, struct radeon_ring *ring)
 void r100_bm_disable(struct radeon_device *rdev)
 {
         u32 tmp;
-        u16 tmp16;
 
         /* disable bus mastering */
         tmp = RREG32(R_000030_BUS_CNTL);
@@ -2197,8 +2196,7 @@ void r100_bm_disable(struct radeon_device *rdev)
         WREG32(R_000030_BUS_CNTL, (tmp & 0xFFFFFFFF) | 0x00000040);
         tmp = RREG32(RADEON_BUS_CNTL);
         mdelay(1);
-        pci_read_config_word(rdev->pdev, 0x4, &tmp16);
-        pci_write_config_word(rdev->pdev, 0x4, tmp16 & 0xFFFB);
+        pci_clear_master(rdev->pdev);
         mdelay(1);
 }